From e7b17e44504a0058cf409cca6fdb6727773ac07d Mon Sep 17 00:00:00 2001
From: Gleb Koval <gleb@koval.net>
Date: Sun, 29 May 2022 21:00:01 +0100
Subject: [PATCH] contains duplicate in 3 more languages for some reason

---
 contains-duplicate/sol.js | 14 ++++++++++++++
 contains-duplicate/sol.py |  8 ++++++++
 contains-duplicate/sol.ts | 10 ++++++++++
 3 files changed, 32 insertions(+)
 create mode 100644 contains-duplicate/sol.js
 create mode 100644 contains-duplicate/sol.py
 create mode 100644 contains-duplicate/sol.ts

diff --git a/contains-duplicate/sol.js b/contains-duplicate/sol.js
new file mode 100644
index 0000000..ea8def5
--- /dev/null
+++ b/contains-duplicate/sol.js
@@ -0,0 +1,14 @@
+/**
+ * @param {number[]} nums
+ * @return {boolean}
+ */
+var containsDuplicate = function(nums) {
+    let exists = {};
+    return nums.some(n => {
+        if (exists[n]) {
+            return true;
+        }
+        exists[n] = true;
+        return false;
+    });
+};
\ No newline at end of file
diff --git a/contains-duplicate/sol.py b/contains-duplicate/sol.py
new file mode 100644
index 0000000..9d22659
--- /dev/null
+++ b/contains-duplicate/sol.py
@@ -0,0 +1,8 @@
+class Solution:
+    def containsDuplicate(self, nums: List[int]) -> bool:
+        exists = {}
+        for n in nums:
+            if n in exists:
+                return True
+            exists[n] = True
+        return False
\ No newline at end of file
diff --git a/contains-duplicate/sol.ts b/contains-duplicate/sol.ts
new file mode 100644
index 0000000..239d1e9
--- /dev/null
+++ b/contains-duplicate/sol.ts
@@ -0,0 +1,10 @@
+function containsDuplicate(nums: number[]): boolean {
+    let exists = {};
+    return nums.some(n => {
+        if (exists[n]) {
+            return true;
+        }
+        exists[n] = true;
+        return false;
+    });
+};
\ No newline at end of file